Microsoft Office Communicator 2007 R2 is the recommended unified communications client for Office Communications Server 2007 R2. This client supports placing and receiving calls, enhanced presence, instant messaging (IM), and multimodal conferencing features.

Important:
Users using Office Communicator 2007 R2 cannot be homed on an Office Communications Server 2007 or a Live Communications Server 2005 with SP1 Enterprise pool or Standard Edition server.

For both internal and remote clients, the certification authority (CA) certificate chain for the Office Communications Server 2007 R2 deployment must be downloaded and installed to the certificate store of the client computer.

Tip:
The root certificates for many popular CAs are included with the client installation.

Supported Versions of Office Communicator

Office Communications Server 2007 R2 supports the following versions of Office Communicator:

• Office Communicator 2007 R2
  
  
• Office Communicator 2007
  
  
• Office Communicator 2005 (only for IM and legacy presence; enhanced presence and voice/video are not supported)
  
  

Note:
Communications with federated partners who use any of these versions of Office Communicator are also supported.

Office Communicator 2007 R2 is compatible with the following versions of Microsoft Office Outlook:

• Office Outlook 2007
  
  
• Office Outlook 2003 with SP2
  
  

Office Communicator 2007 R2 is compatible with the following versions of Microsoft Exchange Server:

• Exchange Server 2007
  
  

  Note:
  Exchange Server 2007 with SP1 is required to integrate Exchange Unified Messaging with Office Communications Server 2007 R2.

• Exchange Server 2003
  
  

For details about software and hardware requirements for Office Communicator 2007 R2, see the Microsoft Office Communicator 2007 R2 Getting Started Guide, which is available at http://go.microsoft.com/fwlink/?LinkID=140488 .

Remote Desktop Support

Office Communicator 2007 and Office Communicator 2007 R2 support Remote Desktop Services (formerly Terminal Services) and Citrix Metaframe only when used for IM and presence.

When Communicator Web Access is deployed, users can use a Web browser to access the presence, IM, and conferencing features of Office Communications Server without installing a desktop client or connecting through a VPN.

For both internal and remote clients, the CA certificate chain for the Office Communications Server deployment must be downloaded and installed to the certificate store of the client computer. For details about the required certificates, see Certificate Infrastructure Requirementsin the Planning and Architecture documentation.

For details about the supported browsers for the Communicator Web Access client, see Web-Based Accessin the Planning and Architecture documentation..

The Microsoft Office Live Meeting client is the data collaboration and audio/video client for both Office Communications Server and the hosted Microsoft Live Meeting service. It allows users to participate in meetings.

Supported Versions

Office Communications Server 2007 R2 supports the Office Live Meeting 2007 version of the Office Live Meeting client for Web conferencing.

For details about software and hardware requirements for the Office Live Meeting client, see Deploying the Microsoft Office Live Meeting 2007 Client with Office Communications Server 2007 R2documentation, which is available at http://go.microsoft.com/fwlink/?LinkID=140481 .

Remote Desktop Support

Microsoft Office Live Meeting 2007 is not optimized for use with Remote Desktop Services. Features and functionality are not supported when Microsoft Office Live Meeting 2007 is used in a remote desktop environment.

The Microsoft Outlook Add-in is the conference scheduling client for Office Communications Server. This scheduling client is used for Web conferencing and dial-in conferencing scheduling.

Supported Versions

Office Communications Server 2007 R2 supports the following versions of Microsoft Office Outlook:

• Outlook 2007 with the latest service pack
  
  
• Outlook 2003 with SP2
  
  

Office Communications Server 2007 R2 Attendant is an integrated call management application that enables you to manage many conversations at once through rapid call handling, IM, and on-screen routing.

Supported Versions

Office Communications Server 2007 R2 is the first release of Office Communications Server Attendant.

For details about the software and hardware requirements for Office Communications Server Attendant, see the Microsoft Office Communications Server 2007 R2 Attendant Deployment Guide, which is available at http://go.microsoft.com/fwlink/?LinkID=140474 .

Microsoft Office Communications Server 2007 R2 Group Chat is the group chat client. This client, together with Microsoft Office Communications Server 2007 R2 Group Chat Server, enables real-time communication using group chat sessions, with persistent content that is retained after sessions end. It is used to post and access chat room content, including files, links, and text, as well as to exchange IM messages between two users.

Important:
Group Chat must be installed on an NTFS file system to enforce file system security. FAT32 is not a supported file system for Group Chat.

For details about software and hardware requirements for Group Chat, see the Microsoft Office Communications Server 2007 R2 Group Chat Planning and Deployment Guide, which is available at http://go.microsoft.com/fwlink/?LinkID=140497 .

Supported Versions

Office Communications Server 2007 R2 is the first release of Group Chat.

Microsoft Office Communicator Mobile is a unified communications client that runs on Windows Mobile 6.0 or Windows Mobile 6.1 software for Pocket PC and smartphone devices. Communicator Mobile integrates IM, presence, and telephony.

To perform authentication, the 2007 R2 version of Communicator Mobile requires the root certificate that is part of the server certificate to be installed on the device. By default, Windows Mobile-powered devices are shipped with a variety of certificates. If your organization uses a public CA, the root certificate may already be installed on your users' mobile devices. For details about certificates for Communicator Mobile, see Deploying Communicator Mobile for Windows Mobilein the Client Planning and Deployment documentation.

For details about Communicator Mobile prerequisites, see Communicator Mobile for Windows Mobileand Communicator Mobile for Javain the Client Planning and Deployment documentation.

Supported Versions

Office Communications Server 2007 R2 supports only the 2007 R2 version of Microsoft Office Communicator Mobile. If you are using an earlier version of Communicator Mobile, you must upgrade to the 2007 R2 version.

Microsoft Office Communicator Mobile for Java is used to support mobile devices that run Java Mobile Edition software like Nokia S60, Nokia S40, and Motorola RAZR V3xx phones. Communicator Mobile for Java provides Contact List, presence, IM, corporate directory search, and voice mail and messaging functionality.

Important:
Communicator Mobile for Java requires Office Communications Server 2007 R2 with Communicator Web Access and other server components. For details, see Communicator Mobile for Javain the Client Planning and Deployment documentation.

To perform authentication, Communicator Mobile for Java requires the root certificate that is part of the server certificate to be installed on the device. If your organization uses a public CA, the root certificate may already be installed on your users' mobile devices.

Supported Versions

Office Communications Server 2007 R2 is the first release of Communicator Mobile for Java.

Requirements

Communicator Mobile for Java can be installed on the following mobile phones:

• Nokia S60
  
  
• Nokia S40
  
  
• Motorola RAZR V3xx
  
  

To support the Communicator Mobile for Java client, the mobile phone must also meet the following requirements:

• Capable of running Java applications greater than 512 KB, and with a heap size of 2 MB.
  
  
• Mobile Information Device Profile 2.0 (MIDP 2.0).
  
  
• Connected Limited Device Configuration 1.1 (CLDC 1.1).
  
  
• Screen resolution:
  
  
  • 240x320 for Nokia S40 and Motorola RAZR V3xx phones.
    
    
  • 240X 320 or 320x240 for Nokia S60 phones.
    
    
• Data-connection-enabled (GPRS, Edge, or 3G connection) mobile device. Subscription to an unlimited data plan on the mobile device is recommended, because the client and server will be exchanging messages even when they are in an idle state.
  
  

Communicator Mobile for Java is compatible with the following phone models:

• Nokia S60
  
  
  • Nokia E51
    
    
  • Nokia E63
    
    
  • Nokia E66
    
    
  • Nokia E71
    
    
  • Nokia N95
    
    
• Nokia S40
  
  
  • Nokia 3120 Classic
    
    
  • Nokia 3600 Slide
    
    
  • Nokia 5220 XpressMusic
    
    
  • Nokia 5310 XpressMusic
    
    
  • Nokia 5610 XpressMusic
    
    
  • Nokia 6212 Classic
    
    
  • Nokia 6300i
    
    
  • Nokia 6301
    
    
  • Nokia 6500 Classic
    
    
  • Nokia 6500 Slide
    
    
  • Nokia 6600 Fold
    
    
  • Nokia 6600 Slide
    
    
  • Nokia 7210 Supernova
    
    
  • Nokia 7310 Supernova
    
    
  • Nokia 7510 Supernova
    
    
  • Nokia 7610 Supernova
    
    
  • Nokia 7900 Prism
    
    
  • Nokia 8800 Arte
    
    
• Motorola RAZR
  
  
  • Motorola RAZR V3xx
    
    

This version of Communicator Mobile for Java is also compatible with the following phone modes. However, these phones have certain limitations: These devices require that the SSL server certificate chain that is configured on the Communicator Web Access server or reverse proxy not have any certificates with a public key size that is greater than 2,048 bits.

• Nokia 5300
  
  
• Nokia 6233
  
  
• Nokia 6234
  
  
• Nokia 6267
  
  
• Nokia 6275
  
  
• Nokia 6275i
  
  
• Nokia 6282
  
  
• Nokia 6288
  
  
• Nokia 6126
  
  
• Nokia 6300
  
  
• Nokia 6555
  
  
• Nokia 7373
  
  
• Nokia 7390
  
  
• Nokia 7500 Prism
  
  
• Nokia 8600 Luna
  
  

Note:
Communicator Mobile for Java might run on other carriers that accept Java Verified Program Certification, but this is not a supported scenario.

Microsoft Office Communicator 2007 R2 Phone Edition is an intelligent Internet Protocol (IP) phone that supports placing and receiving calls, enhanced presence, SIP signaling, and a user experience similar to that of Office Communicator.

To perform authentication, Communicator Phone Edition requires certificates. If your organization uses a public CA, the certificate will probably be trusted by the device automatically, because Windows CE includes the list of trusted public CAs. However, if your organization uses internal certificates for the internal Office Communications Server 2007 R2 servers, the root CA certificate from the internal CA must be installed on the device. You must use the network to install the root CA certificate.

The Microsoft RoundTable conferencing device is an advanced conferencing device that provides a 360-degree view of the conference room, wideband audio, and video that tracks the flow of conversation among multiple speakers.